F

V2kres0_

< 0.35g where cos (p/2kres) is taken as positive; and d 1

kres = 2L X i' with i =1, 2, 3 or 4 but considering only values of kres < kmax;

(coefficient for repetitive loads with damping);

F** is a single force representing the equally spaced group of axles of a train (kN);

R is the ratio of amplitude of successive amplitude peaks (agreed with the relevant authority);

d is the spacing of the group of axles (m);

m is the number of equally spaced groups of axles;

H.3 Dynamic load effects

H.3.1 Additional check for load effects at kres (as above kres < kmax). For values of kres < 0.5:

3 Dji 3 Frag < F 3 EUDLlm71

os ^2keresJ 3 Du 3 Frag < F 3 EUDLLM71

where keres is given by 0.9kres # keres # 1.1kres, and chosen to give the maximum value of 2k eres

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